... and fashional,surface use uv spray-finishing, bright colors.2.install high quality li-ion battery,fully power supply.3.dual circuits ... and fashional,surface use uv spray-finishing, bright colors.2.install high quality li-ion battery,fully power supply.3.dual circuits ... and fashional,surface use uv spray-finishing, bright colors.2.install high quality li-ion battery,fully power supply.3.dual circuits ...